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Which of the following conditions imply ...

Which of the following conditions imply that the real number x is rational ? I `x^(1/2)` is rational II `x^2 and x^5` are rational III `x^2 and x^4` are rational II x2 and x3 are rational (A) Jand I only (B) I and IIl only (C) Il and II only (D) I, Il and II (A) Jánd II only (B) I and III only

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